My first adapter for the X-Pro was a Kipon. Total garbage, money wasted. My M lenses had play in three axes when mounted on the thing. I'm currently using the Fuji one, and I'm happy with it, but word on the street is that the Rayquals are as good or better.
__________________ There are two kinds of photographers:
those who are interested in what a particular camera can't do,
and those who are interested in what it can do. semilog.smugmug.com | flickr.com/photos/semilog/